[xsl] Where in the XPath 2.0 is the text stating that a function can be

I can see from the productions of the XPAth 2.0 grammar that:

  A StepExpr can be a FilterExpr       (27)

and

 A FilterExpr can be PrimaryExpr      (38)

and

 A PrimaryExpr can be FunctionCall  (41)


However I cant see anywhere a description in natural language that a
step can be a function call, and I think it is important that this
fact be stated clearly enough.

Am I missing this text?



-- 
Cheers,
Dimitre Novatchev
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Truly great madness cannot be achieved without significant intelligence.
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To invent, you need a good imagination and a pile of junk
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Never fight an inanimate object
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You've achieved success in your field when you don't know whether what
you're doing is work or play
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I enjoy the massacre of ads. This sentence will slaughter ads without
a messy bloodbath.

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